List Of Check Items - Yamaha M7CL-32 Service Manual

1) Automatic mode: When the [START] button at the bottom of the Fig. 2 screen is pressed, selected checking items will be executed
sequentially from the upper left downward. All judgment columns become blank when checking is started.
With [STOP on NG] selected, checking is stopped temporarily when judgment is NG.
Checking stops temporarily when the [PAUSE] button is pressed and stops when [STOP] button is pressed during the
temporal stop. Checking is restarted when the [CONTINUE] button is pressed.
2) Individual mode: If the button with OK/NG indication is pressed in Fig. 2, individual checking screen will be displayed. Press the [START]
button in each screen to execute the checking.
3) For the check items and check contents, refer to "List of Check Items" below.
4) For the check with no applicable items in each check screen, their characters disappear (gray out).
5) The file where the check results are stored should be named "Storage file name.csv". (Only general check results will be saved.)
6) It is possible to save the communication results (right side of Fig. 3) as a file. (up to 30KB)
It should be named "Storage file name.txt"
Check CAUTION by showing warning message in operation. (Check also if the unit works with external power supply only at this time.)
So, no item name will appear.
Example of individual check screen (when checking in automatic mode) (Fig. 3)
Indicated when the total judgment of
all individual items is completed.
Judgment result of each item
NO appears when there is
no communication response
Item not existing
Item requiring no judgment
Operation instructions are displayed in
red and processing status in black.
Used to start checking.
During the checking, this button
becomes [CONTINUE] button and
restarts checking when pressed
during temporal stop.
Auto Next function
· When checking is started in automatic mode, the Auto Next function is turned on and checking proceeds automatically.
· When checking is started in individual mode, the Auto Next function is turned off. Checking is started using the [START] button.
· To recheck the NG item in automatic mode, press the [PAUSE] button, turn off the Auto Next function and press the [START] button.

List of check items

Item Check name
1-1 CPUM SRAM
1-2 CPUM SDRAM
1-3 BATT
1-4 RTC
1-5 E-BUS HOST
1-6 PLLP2
1-7 DSP6
1-8 DSP7
1-9 SLOT
1-10 WORD CLOCK
1-11 2TR OUT
1-12 MIDI
1-13 REMOTE
1-14 LAMP,CAUTION
1-15 CPUP SDRAM
1-16 MAIN CPU I/F
1-17 USB STORAGE
1-18 HAAD
1-19 LCD
1-20 TOUCH PANEL
Checking Item
NG WORD CLOCK NG:WCLK
NG:BNC_WCLK_44K
NG OUT->IN NG: BNC_WCLK_48K_COUNT=1023
OK PLL(DIR2,DBL)
NO PLL UnLock
ACI 2 Loop
NG: AC_CH2 None Rx_data
-- COM or Communication
** VER OK: AC_CH2
Disconnect WORD CLOCK
IN BNC cable
AutoNext
START PAUSE CLOSE
OkData
Used to stop checking Closes this screen to
temporarily. Works as return to Fig. 2 screen.
[STOP] during temporal
stop, and pressing it will
force to end checking.
Check the data bus and address bus of CPUM SRAM
Check the data bus and address bus of CPUM SDRAM
Check the voltage of the backup battery
Obtain and set Real Time Clock
Check E-Bus Host register by reading/writing it
Check PLLP2 register by reading/writing it
Check each DSP6 register by reading/writing it. Check SIO for connection
Check each DSP7 register by reading/writing it. Check SIO for connection
Check each signal of SLOT and power supply voltage
Check PLL LOCK by counting Fs of WCLK OUT at WCLK IN
Checks by working 2T OUT DIGITAL.
Check transmission/reception by loopbacking MIDI IN/OUT
Check transmission/reception by loopbaking at REMOTE terminal
Checks LAMP output voltage only
Judges by checking that LCD test program is running.
Checks by duplex CPU communication
Check control line by reading/writing USB MEMORY.
Measure through sound by communicating to HAAD circuit board and changing GAIN
Check LCD indication
Check input from TOUCH PANEL
Communication contents are displayed while checking all items.
· Scrolling is possible.
· Writing into text file is possible by using the copy & paste functions.
When check result is NG, details are displayed.
(Output from target CPU)
When there is TxData,
command being transmitted is also displayed.
When there is Ok Data,
OK: is also displayed.
When checking visually, this box is displayed.
Check ID
OK
TxData
OK button and Enter key are linked.
When the check is marked here, OK and data being transmitted are displayed
for debugging this PC program (No check mark when program is started.)
Outline of check item
M7CL-32/M7CL-48
NG
Judgment
Auto
Auto
Auto
Auto
Auto
Auto
Auto
Auto
Auto
Semi-auto
Semi-auto
Auto
Auto
Semi-auto
Auto
Auto
Auto
Auto
Semi-auto
Semi-auto
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